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03 Sep 2018, 04:46

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Difficulty:

45% (medium)

Question Stats:

83%(02:23) correct 17%(04:33) wrong based on 6 sessions

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A circular pond is drained through a tiny hole in its middle, such that its diameter becomes smaller at a constant rate of \(x\) meters per second. If it takes the pond \(y\) seconds to fully drain, what was its initial circumference?

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03 Sep 2018, 04:46

Official Solution:

A circular pond is drained through a tiny hole in its middle, such that its diameter becomes smaller at a constant rate of \(x\) meters per second. If it takes the pond \(y\) seconds to fully drain, what was its initial circumference?

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04 Sep 2018, 15:15

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Bunuel wrote:

Official Solution:

A circular pond is drained through a tiny hole in its middle, such that its diameter becomes smaller at a constant rate of \(x\) meters per second. If it takes the pond \(y\) seconds to fully drain, what was its initial circumference?

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04 Sep 2018, 20:02

rajudantuluri wrote:

Bunuel wrote:

Official Solution:

A circular pond is drained through a tiny hole in its middle, such that its diameter becomes smaller at a constant rate of \(x\) meters per second. If it takes the pond \(y\) seconds to fully drain, what was its initial circumference?